Photochromism meaning
Web1 of 2 adjective. pho· to· chro· mic ˌfōt-ə-ˈkrō-mik. 1. : capable of changing color on exposure to radiant energy (as light) eyeglasses with photochromic lenses. 2. : of, relating to, or … WebJul 29, 2016 · Abstract. This chapter outlines how industrial photochromic dyes are designed, manufactured and used. It explains the properties that are crucial to their commercial utility and, in doing so, gives a definition of ‘industrial photochromism’. Such colorants possess several key molecular features. This Chapter reveals how these …
Photochromism meaning
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WebPhotochromic Definition. Designating or of a material, as certain glass or film, which turns dark when exposed to light and returns to its normal transparency with the removal of the … WebPhotochromic materials, a class to which bacteriorhodopsin (BR) belongs, have not been used much in holography. Photochromics are real-time recyclable materials which need …
WebOriginally the term photochromism was applied to light-induced, reversible photochemical reactions which resulted in a visible colour change. However, this definition has been extended to cover reversible transformations between two states with differing absorption spectra which may be in the UV, visible or IR regions of the electromagnetic spectrum, the … WebThe meaning of PHOTOCHROMIC is capable of changing color on exposure to radiant energy (such as light). How to use photochromic in a sentence. ... photochromism-ˌmiz …
WebNov 17, 2011 · Photochromism: Definition. ... The photochromism exhibited the ability to switch between colorless and blue. A fading process occurred when the film was exposed to ambient air or O2 in the dark ... WebPhotochromism: Memories and SwitchessIntroduction Photochromism is defined as a reversible pho-totransformation of a chemical species between two forms having different absorption spectra. During the photoisomerization, not only the absorption spectra but also various physicochemical properties change, such as the refractive index, dielectric ...
WebPhotochromism in TiO 2 and in the alkaline earth titanates is associated with the presence of iron impurity. Fe 3 ions enter the TiO 2 structure substitutionally for Ti 4+ ions, each pair of Fe 3+ ions being compensated for by one O = vacancy. Some of the Fe 3+ ions occupy sites adjacent to the vacancies forming Fe 3+ centers. Iron-doped rutile is colorless or …
Webpho·to·chro·mat·ic (fō′tō-krə-măt′ĭk) adj. Of or relating to a substance or object whose color changes on exposure to light: photochromatic glasses that darken in sunlight. … fitbit not working after swimmingWebMar 31, 2024 · photochromism in British English (ˌfəʊtəʊˈkrəʊmɪzəm ) noun chemistry the reversible transformation of something's colour due to exposure to electromagnetic … can galen hot for teacherWebJun 9, 2024 · It derives from the Greek words ‘phos’ (meaning light) and ‘chroma’ (meaning colour). The IUPAC defines photochromism as the “ reversible transformation of a … can galaxy watch play musicWebphotochromism (countable and uncountable, plural photochromisms) The reversible transformation of the optical properties of a material when exposed to electromagnetic … fitbit no weather dataWebPhotochromic definition: Designating or of a material, as certain glass or film, which turns dark when exposed to light and returns to its normal transparency with the removal of the light source. can gallbladder cause bad taste in mouthWebFeb 25, 2011 · Photochromism is a part of photochemistry dealing with reversible photochemical reactions. Photochromism was first reported by Fritsche in 1867 [1], who observed that tetracene with air and light ... fitbit not working todayWebMar 12, 2003 · Photochromism is simply defined as the light induced reversible change of colour. The field has developed rapidly during the past decade as a result of attempts to improve the established materials and to discover new devices for applications.As photochromism bridges molecular, supramolecular and solid state chemistry, as well as … can gallbladder cause bad breath